Suciati N, Palupi TW. The Analogy of Magnet Rules to Practice Main Verbs and Helping Verbs in English Sentence Predicate. ISETA [Internet]. 2022Aug.24 [cited 2024Dec.3];00:47-2. Available from: https://jurnal.stkipbjm.ac.id/index.php/iseta/article/view/1850